All of the errors received in the first test were very near the end of the burn (near max capacity) where the recorder ramps up to a higher speed and the disc spins at higher velocity. This makes it more likely that you would encounter errors and increases the drives use of error correction. (Higher error correction decreases the disc compatibility with different drives and can render the disc unplayable over time.) By capping the burn speed at 32x you increase the overall quality of the disc and virtually eliminate bad discs all while only increasing the burn time by 9 seconds.